Duniver punched the victim in the face and knocked him to the ground, police said. Duniver continued to hit the victim until the victim provided the password for his cell phone and laptop, police said.

A 14-year-old girl was also identified as one of the suspects in the robbery.

In addition to the robbery of the Northwestern student, Duniver was charged in a robbery in the 800-block of North Dearborn Street at about 8:30 p.m. Sunday. Police said Duniver punched a 25-year-old man until the victim gave him his cell phone password before fleeing with the cell phone and credit cards.

Police said Duniver turned himself into police Thursday. He is charged with two counts of robbery and the 14-year-old girl has been charged with one count of robbery.